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Anti-slip control method for hybrid electric vehicle, hybrid electric vehicle and storage medium

A technology of a hybrid electric vehicle and a control method, which is applied in the field of vehicle control, can solve problems such as poor reliability, and achieve the effects of preventing stalling for a long time, accurate control, and strong reliability.

Active Publication Date: 2020-01-17
一汽解放青岛汽车有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing vehicles generally use pure electric mode to stabilize slopes, which has poor reliability

Method used

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  • Anti-slip control method for hybrid electric vehicle, hybrid electric vehicle and storage medium
  • Anti-slip control method for hybrid electric vehicle, hybrid electric vehicle and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides a hybrid vehicle anti-slope control method. When the speed of the slope is small, the drive motor is controlled separately to stabilize the vehicle. When the speed of the slope is high, the engine and the drive motor are used to maintain the stability of the vehicle. It effectively maintains the stability of the vehicle and has strong reliability. In the process of controlling the slope, the torque of the drive motor is intermittently reduced to prevent the drive motor from overheating due to long stalling time, and to ensure the life of the drive motor and the entire vehicle.

[0037] Such as figure 1 As shown, the anti-slope control method of the hybrid electric vehicle comprises the following steps:

[0038] S1. Obtain the vehicle signal;

[0039] After the vehicle is powered on, the vehicle signal is obtained in real time. Optionally, the vehicle signal includes a gear position signal, a drive motor speed signal, a brake pedal opening sign...

Embodiment 2

[0060] figure 2 It is a schematic structural diagram of a hybrid electric vehicle in this embodiment. figure 2 A block diagram of an exemplary hybrid vehicle 412 suitable for use in implementing embodiments of the invention is shown. figure 2 The shown hybrid vehicle 412 is only an example, and should not impose any limitation on the functions and scope of use of the embodiment of the present invention.

[0061] Such as figure 2 As shown, a hybrid vehicle 412 is represented in the form of a universal terminal. The components of the hybrid electric vehicle 412 may include, but are not limited to: a hybrid electric vehicle body (not shown in the figure), one or more processors 416, and a storage device 428 to connect different system components (including the storage device 428 and the processor 416) bus 418.

[0062] Bus 418 represents one or more of several types of bus structures, including a storage device bus or controller, a peripheral bus, an accelerated graphics ...

Embodiment 3

[0080] This embodiment provides a computer-readable storage medium, on which a computer program is stored. When the program is executed by a processor, the method for controlling a slope prevention of a hybrid electric vehicle as provided in the embodiment of the present invention is implemented. The method includes:

[0081] S1. Obtain the vehicle signal;

[0082] S2. Based on the vehicle signal, it is judged whether the current vehicle state satisfies the condition of anti-slope, if yes, then jump to S3, if not, then end;

[0083] S3. If the rotational speed of the driving motor is greater than the first threshold, start the engine, and jump to S4, where the first threshold can be calibrated; if the rotational speed of the driving motor is not greater than the first threshold, then the engine remains shut down, and jump to S4;

[0084] S4. Enable the PI calculator, adopt the closed-loop proportional integral PI control method, obtain the coefficients of the proportional term a...

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Abstract

The invention discloses an anti-slip control method for a hybrid electric vehicle, the hybrid electric vehicle and a storage medium, and belongs to the field of vehicle control. The method comprises the following steps of S1, acquiring a whole vehicle signal; S2, if an anti-slip condition is met, turning to S3, and otherwise, ending; S3, if the rotating speed of a driving motor is larger than a first threshold value, starting the engine, and turning to S4; otherwise, stopping the engine, and turning to S4; S4, calculating PI adjusting torque; S5, calculating a feed-forward torque and a total output torque; S6, if the total output torque exceeds a locked-rotor torque range of the driving motor, turning to S7, and otherwise, turning to S8; S7, calculating the engine torque and the driving motor torque, and turning to S9; S8, defining the torque of the driving motor as the total output torque, and turning to step S9; S9, if the vehicle is stable, turning to S10, and otherwise, turning toS4; S10, if the stable duration of the vehicle exceeds the set time, turning to S11; and S11, resetting the PI calculator, and turning to S2. When the vehicle slides on a slope quickly, the driving motor and the engine are adopted to maintain the stability of the vehicle, and the reliability is high.

Description

technical field [0001] The invention relates to the field of automobile control, in particular to a hybrid electric vehicle anti-slope control method, a hybrid electric vehicle and a storage medium. Background technique [0002] When the vehicle is on a slope, the vehicle will slide due to gravity. Existing vehicles generally use pure electric mode to stabilize slopes, which has poor reliability. Contents of the invention [0003] The object of the present invention is to provide a hybrid electric vehicle anti-slope control method, a hybrid electric vehicle and a storage medium, which have high reliability. [0004] In order to achieve the above purpose, the following technical solutions are provided: [0005] A method for controlling an anti-slope of a hybrid electric vehicle, comprising: [0006] S1. Obtain the vehicle signal; [0007] S2. Based on the vehicle signal, it is judged whether the current vehicle state satisfies the condition of anti-slope, if yes, then j...

Claims

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Application Information

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IPC IPC(8): B60W10/06B60W10/08B60W20/10B60W40/00
CPCB60W10/06B60W10/08B60W20/10B60W40/00B60W2710/0666B60W2710/083Y02T10/62
Inventor 李胜李胜伟庄晓刘涛王英杰高远金王牧原
Owner 一汽解放青岛汽车有限公司
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